5+8+11+14+ .... ধারাটির কোন পদ 302?
Created: 6 years ago |
Updated: 3 years ago
best des
মনে করি, প্রথম পদ a = 5
সাধারণ অন্তর d = 8 - 5 = 3
r তম পদ = 302
a + (r - 1) d = 302
5 + (r - 1).3 = 302
5 + 3r - 3 = 302
3r = 302 - 5 + 3
r = 300/3
r = 100
100 তম পদ = 302
Md Azizur Rahman
Founder of Satt
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